it is a small roughly cylindrical fleece or fur lined container, about 6" deep, 4" across, with traces of magnesium carbonate power within. when can I come and pick it up?
yes, yes and yes - only there is more than a trace of magnesium, and the owners ran to a waiting car and headed 'south'. This is where your claim falls short - I know you have never been further south than Buxton, and unless your definition of trace of powder is that of scarface you are wrong and wonger.
Who is the maker of this chalk bag I ask ye?
I wonder if Welford's lost another one. 
Maybe they're his pants too? 
I heard he wears pants made of the finest sheffield steel (to match his steely fingers). These pants are neither steel nor fine. They may be from Sheffield.
